$564+ Cheap flights from Heathrow (LHR) to Philadelphia (PHL)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/7. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — PHL
Nov 5 — Nov 121
Round-trip
1 adult, Economy
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Find cheap flights from Heathrow to Philadelphia with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from London Heathrow to Philadelphia are usually found in March or January, booked 12 days in advance, depart on a Monday or Tuesday and return on a Wednesday
Cheap flight deals from Heathrow to Philadelphia
Cheapest
Best
Last-minute
One-way
Cheapest flights from Heathrow to PhiladelphiaExplore the most affordable flight options available from Heathrow to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 6, 2026.
Explore the most affordable flight options available from Heathrow to Philadelphia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 6, 2026.
This Justfly.com deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:50 am -
2 stops12h 54m
Mon 11/169:15 am -
2 stops30h 45m
Deal found 10/5![Air Canada logo]()
$786
This lol.travel deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:50 am -
2 stops12h 54m
Mon 11/99:15 am -
2 stops16h 55m
Deal found 10/3![Multiple Airlines logo]()
$789
This Air Canada deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/76:00 am -
2 stops37h 44m
Mon 12/149:15 am -
2 stops16h 15m
Deal found 10/4![Air Canada logo]()
$791
This Gotogate deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/189:00 am -
2 stops18h 56m
Wed 11/259:15 am -
2 stops16h 55m
Deal found 10/4![Air Canada logo]()
$792
This United Airlines deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/249:00 am -
2 stops29h 49m
Sun 11/299:15 am -
2 stops30h 45m
Deal found 10/3![United Airlines logo]()
$793
This Air Canada deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/99:00 am -
2 stops18h 56m
Mon 12/149:15 am -
2 stops16h 15m
Deal found 10/5![Air Canada logo]()
$794
This lol.travel deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:50 am -
2 stops12h 54m
Mon 11/93:20 pm -
1 stop10h 50m
Deal found 10/5![Air Canada logo]()
$796
This Mytrip deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/910:50 am -
1 stop17h 26m
Mon 11/168:30 am -
1 stop16h 55m
Deal found 10/6![Multiple Airlines logo]()
$798
Best flights from Heathrow to PhiladelphiaDiscover carefully curated flight deals from Heathrow to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 6, 2026.
Discover carefully curated flight deals from Heathrow to Philadelphia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 6, 2026.
This United Airlines deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/710:25 am -
2 stops28h 17m
Mon 12/289:50 am -
1 stop17h 05m
Deal found 10/3![United Airlines logo]()
$830
This Scandinavian Airlines deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:05 am -
3 stops22h 50m
Wed 11/182:12 pm -
2 stops20h 48m
Deal found 10/3![Scandinavian Airlines logo]()
$831
This British Airways deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/96:30 am -
1 stop12h 35m
Mon 12/146:35 pm -
Nonstop7h 00m
Deal found 10/2![British Airways logo]()
$835
This TAP AIR PORTUGAL deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/166:30 pm -
2 stops43h 09m
Sun 1/39:29 am -
2 stops31h 06m
Deal found 10/1![TAP AIR PORTUGAL logo]()
$872
This JetBlue deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/189:20 am -
1 stop16h 17m
Wed 11/251:25 pm -
1 stop12h 30m
Deal found 10/4![JetBlue logo]()
$900
This British Airways deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:30 am -
1 stop12h 30m
Wed 11/184:25 pm -
1 stop9h 35m
Deal found 10/3![British Airways logo]()
$842
This United Airlines deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals ”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/912:05 pm -
1 stop11h 46m
Mon 11/164:59 pm -
1 stop14h 01m
Deal found 10/6![United Airlines logo]()
$902
This British Airways deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/86:30 am -
1 stop12h 35m
Thu 1/76:36 pm -
1 stop9h 34m
Deal found 10/4![British Airways logo]()
$884
Last-minute flights from Heathrow to PhiladelphiaDiscover last-minute flight deals from Heathrow to Philadelphia. Data last updated October 6, 2026 and is based on user searches.
Discover last-minute flight deals from Heathrow to Philadelphia. Data last updated October 6, 2026 and is based on user searches.
This Justfly.com deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:50 am -
2 stops12h 54m
Mon 11/169:15 am -
2 stops30h 45m
Deal found 10/5![Air Canada logo]()
$786
This lol.travel deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:50 am -
2 stops12h 54m
Mon 11/99:15 am -
2 stops16h 55m
Deal found 10/3![Multiple Airlines logo]()
$789
This lol.travel deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:50 am -
2 stops12h 54m
Mon 11/93:20 pm -
1 stop10h 50m
Deal found 10/5![Air Canada logo]()
$796
This Mytrip deal was found by Cheapflights users on 10/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/910:50 am -
1 stop17h 26m
Mon 11/168:30 am -
1 stop16h 55m
Deal found 10/6![Multiple Airlines logo]()
$798
This Cheapflightsfares deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/106:40 am -
2 stops20h 32m
Tue 11/1712:25 pm -
2 stops25h 05m
Deal found 10/2![Scandinavian Airlines logo]()
$801
This Air Canada deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:00 am -
2 stops21h 56m
Wed 11/1810:30 am -
2 stops17h 00m
Deal found 10/5![Air Canada logo]()
$800
This Gotogate deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/189:00 am -
2 stops18h 56m
Wed 11/259:15 am -
2 stops16h 55m
Deal found 10/4![Air Canada logo]()
$792
This United Airlines deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/249:00 am -
2 stops29h 49m
Sun 11/299:15 am -
2 stops30h 45m
Deal found 10/3![United Airlines logo]()
$793
One-way flights from Heathrow to PhiladelphiaSearch for one-way flight options from Heathrow to Philadelphia. Find affordable one-way fares based on user searches. Data last updated October 6, 2026.
Search for one-way flight options from Heathrow to Philadelphia. Find affordable one-way fares based on user searches. Data last updated October 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/76:35 pm -
3 stops33h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![Multiple Airlines logo]()
$564
This Kiwi.com deal was found by Cheapflights users on 10/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/14:15 pm -
3 stops37h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/3![Multiple Airlines logo]()
$568
This United Airlines deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/57:30 am -
1 stop13h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![United Airlines logo]()
$569
This Kiwi.com deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/279:45 am -
2 stops37h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/2![Multiple Airlines logo]()
$570
This Kiwi.com deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/28:50 pm -
3 stops39h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![Multiple Airlines logo]()
$571
This Expedia deal was found by Cheapflights users on 10/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/45:30 pm -
1 stop27h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/5![Lufthansa logo]()
$572
This TravelUp deal was found by Cheapflights users on 10/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/69:20 am -
1 stop29h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/4![JetBlue logo]()
$574
This Kiwi.com deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/278:35 pm -
2 stops55h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/2![Multiple Airlines logo]()
$577
This British Airways deal was found by Cheapflights users on 10/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/316:15 am -
1 stop14h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![British Airways logo]()
$579
This United Airlines deal was found by Cheapflights users on 10/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/181:00 pm -
1 stop30h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/2![United Airlines logo]()
$580
Find flight deals from Heathrow to Philadelphia
Discover tips and strategies to find the most affordable flight options for your journey from Heathrow (LHR) to Philadelphia (PHL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $786 (Justfly.com) |
One-way from | $564 (Kiwi.com) |
Popular in | August |
Cheapest in | March |
Average price | $945 |
Good round-trip deal | $825 or less |
Good one-way deal | $711 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Heathrow to Philadelphia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 6, 2026.
Use the filters below to find and compare flights from London Heathrow Airport to Philadelphia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
LondonPhiladelphia
LHR London Heathrow - PHL Philadelphia
LHRPHL
London Heathrow
Wed 3/31
6:15 am-4:10 pm
1 stop14h 55m
Philadelphia
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$579
LondonPhiladelphia
LHR London Heathrow - PHL Philadelphia
LHRPHL
London Heathrow
Wed 11/18
1:00 pm-2:44 pm
1 stop30h 44m
Philadelphia
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$580
LondonPhiladelphia
LHR London Heathrow - PHL Philadelphia
LHRPHL
London Heathrow
Sat 10/31
9:20 am-5:08 pm
1 stop11h 48m
Philadelphia
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$581
LondonPhiladelphia
LHR London Heathrow - PHL Philadelphia
LHRPHL
London Heathrow
Mon 1/4
5:30 pm-4:05 pm
1 stop27h 35m
Philadelphia
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$591
LondonPhiladelphia
LHR London Heathrow - PHL Philadelphia
LHRPHL
London Heathrow
Wed 12/30
1:00 pm-2:44 pm
1 stop30h 44m
Philadelphia
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$591
LondonPhiladelphia
LHR London Heathrow - PHL Philadelphia
LHRPHL
London Heathrow
Wed 11/4
9:20 am-5:08 pm
1 stop12h 48m
Philadelphia
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$593
LondonPhiladelphia
LHR London Heathrow - PHL Philadelphia
LHRPHL
London Heathrow
Thu 11/5
9:20 am-5:08 pm
1 stop12h 48m
Philadelphia
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$594
LondonPhiladelphia
LHR London Heathrow - PHL Philadelphia
LHRPHL
London Heathrow
Sat 4/3
8:40 am-5:32 pm
1 stop13h 52m
Philadelphia
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$600
LondonPhiladelphia
LHR London Heathrow - PHL Philadelphia
LHRPHL
London Heathrow
Thu 12/3
6:30 am-2:05 pm
1 stop12h 35m
Philadelphia
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$603
Quickest round-trip
LondonPhiladelphia
LHR London Heathrow - PHL Philadelphia
LHRPHL
London Heathrow
Mon 11/30
10:35 am-1:45 pm
Nonstop8h 10m
Philadelphia
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$604
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Heathrow to Philadelphia
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Heathrow to Philadelphia in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on London Heathrow Airport-Philadelphia flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on London Heathrow Airport-Philadelphia flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from London Heathrow Airport-Philadelphia flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on London Heathrow Airport-Philadelphia flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for London Heathrow Airport-Philadelphia flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Heathrow to Philadelphia
Have a flexible travel schedule? Discover the best time to fly to Philadelphia from Heathrow with our price prediction graph.
LHR-PHL
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from London Heathrow Airport to Philadelphia
Prices
Airlines
Delays
How far ahead should I book a flight from London Heathrow Airport to Philadelphia?
The best time to book flights from London Heathrow Airport to Philadelphia is 11 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from London Heathrow Airport to Philadelphia?
Currently, March is the cheapest month in which you can book a flight from London Heathrow Airport to Philadelphia (average of $766). Flying from London Heathrow Airport to Philadelphia in August is currently the most expensive (average of $1,158). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from LHR to PHL?
Find hourly flight availability from Heathrow to Philadelphia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 6, 2026.
When flying from London Heathrow Airport to Philadelphia, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How often are flights from London to Philadelphia delayed?
About 16% of weekly flights between London and Philadelphia have experienced delays in the past year, with the average delay time being 154 minutes.
What is the most punctual flight time for London to Philadelphia flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Saturday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on London to Philadelphia flights?
Over the last year, American Airlines have had the lowest number of delays on this route, with just 13% of flights being delayed.
The best insider tips for London Heathrow Airport to Philadelphia flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your London Heathrow Airport to Philadelphia trip
Our travel experts
Reviews of airlines servicing Philadelphia
Get insights into the airlines that provide service to Philadelphia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Philadelphia. Reviews last updated October 6, 2026.
Peruse reviews from past customers who have flown with Aer Lingus,American Airlines, andBritish Airways from London Heathrow Airport to Philadelphia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.0
Comfort
7.2
Boarding
7.5
Food
6.7
Crew
8.1
Overall
7.3
Reviews
1 / 20
10.0
ExcellentGriffith,Feb 2026
MAN - DUB
Entertainment
7.0
Comfort
7.2
Boarding
7.5
Food
6.7
Crew
8.1
Overall
7.3
Reviews
1 / 20
10.0
ExcellentGriffith,Feb 2026
MAN - DUB
Entertainment
7.0
Comfort
7.2
Boarding
7.5
Food
6.7
Crew
8.1
Overall
7.3
Reviews
1 / 20
10.0
ExcellentGriffith,Feb 2026
MAN - DUB
Entertainment
7.0
Comfort
7.2
Boarding
7.5
Food
6.7
Crew
8.1
Overall
7.3
Reviews
1 / 20
10.0
ExcellentGriffith,Feb 2026
MAN - DUB
Related info for your journey
Find useful and relevant information for your journey from Heathrow to Philadelphia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Philadelphia?
Book flights to Philadelphia if you plan to visit one of these locationsWildwood
Reading
King of Prussia
Camden
Ocean City
Wildwood Crest
Cherry Hill
Lewes
Plymouth Meeting
Wyomissing
Pottstown
Milford
Ephrata
Dover
Elkton
Essington
New Castle
Willow Grove
Vineland
Millville
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Alternative routes for Heathrow to Philadelphia
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Complete your trip
Complete your trip to Philadelphia by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Heathrow to Philadelphia by cabin class
Find flights from Heathrow to Philadelphia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Heathrow and Philadelphia flights
Browse other Heathrow and Philadelphia flight options. Last updated on October 6, 2026.
Other flights from Heathrow
Browse through other flights departing from Heathrow. Flights are based on user searches made on Cheapflights and were last updated on October 6, 2026.
Other flights to Philadelphia
Explore flights to Philadelphia departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 6, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Heathrow to Philadelphia
Discover the top 3 airlines that operate flights from Heathrow to Philadelphia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 6, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$610 | Average$824 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$610 | Average$898 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$700 | Average$1,075 | FlexibilityNo cancel fee | On-timeN/A |